`sin20sin40sin80`

Prove that sin10+sin20+sin40+sin50=sin70+sin80

Prove that sin20^@sin40^@sin80^@=sqrt3/8

Prove the following: sin20^@sin40^@sin80^@=sqrt3/8

Prove that: sin20^0sin40^0sin80^0=(sqrt(3))/8

The value of sin20^@sin 40^@sin 60^@sin 80^@ is

Prove the following: sin20^@sin40^@sin60^@sin80^@=3/16

For A in R , P.T (i) sinAsin(pi/3+A)sin(pi/3-A)=1/4sin3A (ii) sin20^@sin40^@sin60^@sin80^@=3//16

Prove that: sin20^0sin40^0sin60^0sin80^0=3/(16)

Prove that: sin20^0sin40^0sin60^0sin80^0=3/(16)

The value of sin20^@ sin40^@ sin60^@ sin80^@